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lib/dynamic_debug.c: use seq_open_private() instead of seq_open()

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Using seq_open_private() removes boilerplate code from ddebug_proc_open().

The resultant code is shorter and easier to follow.

This patch does not change any functionality.

Signed-off-by: Rob Jones <rob.jones@codethink.co.uk>
Acked-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rob Jones 2014-10-13 15:51:32 -07:00 • committed by Linus Torvalds
parent 8b21d9ca17
commit 4bad78c550
1 changed files with 2 additions and 15 deletions
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17
lib/dynamic_debug.c
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@ -819,22 +819,9 @@ static const struct seq_operations ddebug_proc_seqops = {
*/ */
static int ddebug_proc_open(struct inode *inode, struct file *file) static int ddebug_proc_open(struct inode *inode, struct file *file)
{ {
struct ddebug_iter *iter;
int err;
vpr_info("called\n"); vpr_info("called\n");
return seq_open_private(file, &ddebug_proc_seqops,
iter = kzalloc(sizeof(*iter), GFP_KERNEL); sizeof(struct ddebug_iter));
if (iter == NULL)
return -ENOMEM;
err = seq_open(file, &ddebug_proc_seqops);
if (err) {
kfree(iter);
return err;
}
((struct seq_file *)file->private_data)->private = iter;
return 0;
} }
static const struct file_operations ddebug_proc_fops = { static const struct file_operations ddebug_proc_fops = {